Jar-molding machine.



iv/TAIEssEs v W. LEWIS.

JAR MOLDING MACHINE.

' APPLICATION FILED JAN. 9. I9I4.

1,157,404. Patented 0ct.19, 1915.

3 SHEETSSHEET I.

I Ms E YY'I II I! NVNOR BY I ATTORNEY COLUMBIA PLANOGIAI'N ca..\vAsH|NCITON. D. 5.

w. LEWIS. JAR MOLDING MACHINE.

APPLICATION FILED JAN-'91 I9I4- 1,157,404. I Patented Oct. 19, 1915.

3 SHEETS-SHEET 2.

WITNESSES I I fi iffi W. LEWIS.

JAR MOLDING MACHINE.

APPLICATION FILED IAN. 9. 1914.

Patented Oct. 19, 1915.

3 SHEETS-SHEET 3- COLUABIA PLANOGIAPM COHVIAMIIMNN. D. c.

STAT.

WILFRED LEWIS, OF PHILADELPHIA, PENNSYLVANIA.

J AR-MOLDING MACHINE ing in the city and county of Philadelphia,

in the State of Pennsylvania, have invented certain new and useful Improvements in Jar-Holding Machines, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

My present invention consists in an improved form of a mold receiving or supporting device particularly adapted for use in connection with a molding machine comprising a roll-over table by which the mold containing flask is swung about a horizontal axis from the position in which the mold forming material is compacted about the patterns. onto the receiving device, and comprising provisions for drawing the patterns by moving them upward out of the mold while the latter is resting upon the receiving device.

One object of the invention is to provide simple and effective means whereby the mold receiving device may be raised and lowered as may be desirable to accommodate molds of different depths, and in particular to bring the mold to or above the floor level at the conclusion of the pattern drawing operation, when, as is frequently desirable, the mold receiving device is mounted in a pit and the mold is placed on it with'the lower portion, at least, of the mold below the level of the floor.

A second object of the invention is to provide a mold receiving device with simple and effective leveling provisions, whereby the device will take the weight of a mold placed upon it without tending to move the then upper face of the mold out of parallelism with itself, notwithstanding irregularities which may exist in the mold containing flask or in the bottom board ordinarily interposed between the flask and mold receiving device; and to combine therewith means whereby, when the mold receiving device is raised to the floor level, it is adjusted to provide a smooth platform having its upper surface flush with thecfloor level.

The various features of novelty which characterize my invention are pointed out with particularity in the claims annexed to and forming a part of this specification.

For a better understanding of the invention h9W Y a d of th ad n g p Specification of Letters Patent.

Patented Oct. 19, 1915.

. Application filed January 9, 1914. Serial No. 811,132.

sessed by it, reference should be had to the accompanying drawings and descriptive matter, in which I have illustrated and described forms in which my invention may be embodied.

Ofthe drawings: Figure 1 is a sectional elevation showing molding machinery comprising myimproved mold receiving device mounted in a pit with the mold receiving device proper below the-floor level; Fig. 2 is a partial sectional elevation, taken similarly to Fig. 1, showing the mold receiving device adjusted to bring its upper surface flush with the floor level; Fig. 3 is a view taken similarly to Fig. 2, showing a modified construction; Fig. 4: is a plan, with parts broken away and removed, of the mold receiving device; Fig. 5 is an end elevation,

with parts broken away and removed of the mold receiving device; and Fig. 6 is a vertical section on the line 6-6 of Fig. l.

In the drawings, and referring first particularly to Fig. 1, A represents the table of ,amold receiving device which is mounted on a base or framework B, which also supports a jar ramming machine C, provided with a roll-overtable D and mechanism for rocking the latter from the dotted line position shown "in 1 into the full line position shown in thatfigure in order to deposit the mold or rather the half-mold X on the mold receiving device. After the mold is placed on the receiving device, the roll-over table D is moved vertically upward to draw the patterns which'are secured to thetable D from the mold. As shown, the molding machinery is mounted in a pit E and the table A of the mold receiving device is substantially below the floor level E when the mold is transferred to it. The mold receiving device includes provisions, however, for

adjusting the mold receiving device to bring the top of the table A flush with the floor level E as shown in Fig. 2.

The particular jar molding machine C proper with its roll-over table D and prov sions for rocking the latter shown, comprises various features which are novel with me, but need not be described or illustrated herein, as they are described and claimed in my co-pending application Serial No. 811,131 filed of even date herewith, and form no part of my present invention, which may be used with other known forms of mold coinpacting and roll-over mechanisms.

" The table A comprises planks A secured at their ends to crossbeams A Each of the two cross beams A rests upon thebar like portion F of a corresponding rocking frame F. Each frame F is fulcrumed' on acorre sponding shaft G secured at its ends in arms H rigidly secured to and forming afpar't of a crosshead I. In'the mold receiving condition of the apparatus the parts F est upon,

and the table A is thereby supported,

I opposite ends to the two corresponding 4e Wedge blocks L, normally"holds these Wedge through lugs H formed on the outer ends of the arms H. In this conditio-nvof the apparatus the upper surface of'the table A is below the upper edge of a beam J, which extends centrally from one edge to the other' of the bars K, each of the latter is provided at one end with a dependingstem K fitting loosely-in the socket H formed for the pu'r pose in the corresponding arm,H. Each arm- H is formed atits' opposite, ends with; inclined guideways H fon each of which is "pair of wedge blocks Lon each arm H apart, and to retract these wedge blocks as'herein after explained, one wedge block of :each.

mounteda wedge block L. To for'cethe pair has 13l"0t&ll7 connected to ,it a plunger M working, in a cylinder- N pivotally connected to the other wedge block. A helical spring. surrounding eachicoiiperating cylinderMand plunger N and connected at lts blocks in their retracted position in which they engage the stops H Pressure fluid is admitted to each cylinder M inorder to I force out the plunger N and thereby spread 'tion of the crosshead I. and thereby of the I the wedge blocksrapartthrough a'pipe con- 'nection M.

The cros'shead-I is mounted on the upper end of a plunger P Working in the cylinder space 13' formed in the supporting framework or machine base B. To prevent rotamoldreceiving parts about the axis of the plunger P; a guide pin I is secured to; the

cross head I at a distance from the axis of the plunger P, and this guide pin has a slid 'ing bearing in the flanged portion B ofthei framework B. This flange is also provided with apertures receiving the actuating rods F pivotally-connected attheir upper ends to the framesF and having nuts F secured to the lower ends in position to engage the under side of the flange B on a predetere mined upwardmovement of the plunger and crosshead I, and thereby [cause the frames F to turn on their shafts Gr on ar fwedge blocks L apart untillthe"correspond- -during thesubsequent pattern drawing op: eration. The wedgebloc'k separating mech that there will be no tendency for the bars 1K to lift the. mold off thelbeam -J.; After the. mold is thus properly mounted on the; i V receiving device, the 'flask' is disconnected from the roll overtable D}, and the-latter is tive positions of the beams J, bars K'and further upwardmovement of thefcrosshead' I and plunger P. -As'shown, I form'a secf ond cylinder spaceB in the framework B to receive a plunger Q. Theplunger, Q as 7 O- plunger P and its upper end is'adapted to shown, is: smalleriinf diameter than the engage the under side of the crosshead I.

-As shown thebylinder spaces B and 13 receive water, oil, or other operating liquid under pressure from reservoir S. through pipes P, and Q respectivelyz The pressure in the reservoir Sis regulated by ai'valve R adapted to :connect the reservoir-either to,. I

the compressed. air supply atmosphere I Q represents a valve by which ,flow through the pipe Q' canbe cut oil". I

Q is the operating handle for the valve} Q 'Thefiexible pipe N supplying air to" the pipes M and thereby to the cylinders M may be connectedto theatmosphere .or to pipe Tor to the the pipeT through the-pipe M and valvelVl I In operation. the mold'is transferred to the mold receiving device. from the roll over table D'towhic'h it has'previously been se cured, when thepartsare in the position V shownZinFig. 1. When themold is'thu's A;

transferred to the mold receiving device, the wedgeblocks L should be retracted, and in consequence the weight ofthe mold is .first imposed directly and entirely upon the beam J, and the interposed bottom mold boardY'sheuld be so adjusted'thatthe usual cleats Y will extend transversely to and cylinders M, thus spreading eachfpair of ing bar K firmly engages the ends ofthe cleats Y at the opposite'sidesofthe beam J, a thus holding the bottom wall board and the mold. against ,movement in "any direction anism should be so proportionedihowever,

moved vertically uplward'to drawthemold. The pressure fluid. is; then admitted to the ofthe crossheadI does not afl 'ecttherelatable A. the :crosshead approaches I the upward limit of its movement, howeventhe [stops F secured'to the rods F? engage meg; -underside of the flange D? so that the final i portion of the upwardflmovenientlfofthe.130

contactwith the beam J; The-beam J can l rock on its supporting shaft I. asrequired I toffirmly seat the mold on the beam. After,

this occurs compressed airis admitted to the;

lowerend of the cylinder 'chamber' B-. to': .araise thecrosshead I and parts carried by the latter. The initial. upward 'movementfl V.

fio

*iunmon crosshead I causes the rockingframes'Fto .5'tive to the beams J and K, and adv'anta- "geously the apparatus is so proportioned and adjusted that when the crosshead reaches the upwardlimit'of its movement,

the parts F will-be so elevated relative to the lugs H that the top surface of the platform'boards A willbe flush with the floor level E and withthe top surfaces of the beams Jand K,which.are also engaged by the platform beams A and held. parallel with the floor boards when theapparatus is in the position shown in Fig. 2. ,This facilitates the removal of the mold, and other operations which may be carried on in tion, however, the parts K K should be lewered with respeCt to the bar J sufficiently to permit of such tilting movement of the car U'as may be necessary to enable it to properly take the; mold.

lVhile in accordance with the provisions of'tlie statutes. 1 have illustrated and described the best forms of my invention now known to me, it will be apparent to those skilled in the-art that changes may be made 75 in the forms of apparatus disclosed without the vicinity, by entirely closing the top of a the pit E, and at the same time avoiding 'projectionslabove the'floor level-over which workmen'are liable to trip.

' 'Pressure fiuid may be admitted to and exhausted from the lower end of the cylinder space E simultaneously with the admission to and exhaust from the chamber B in which case the plungerQ'wil] simply supplement the action ofthe plunger P inraising and lowering the .crosshead I. By providing the stop valve Q in the pipe connecting the reservoir S to the cylinder spaceB it is possible to'trap the required amount of liquid in the space B to enable the plunger Q, to serve as an adjustable stop limiting the downward movement of the crosshead I. This'is desirable where a series of similar molds are handled in succession, for instance, as it enables the mold supporting device to' be readily and quickly adjusted to the exact height whichis most convenient for the transfer'thereto of such molds.

Where, as is sometimes desirable, the mold is transferred from a roll-over table directly onto a car, the receiving mechanism: shown maybe used with but slight modification, as shown in Fig. 3. In this figure U represents the car onwhicl the mold X is de posited, and U the wheels offthe car. As shown, the car U is formed with transverse frame members U adapted to bear on the beam J of the mold receiving 'device,'just as the cleats Y engage} this beam in the apparatus shown in Fig. 1. In theconstruction shown in Fig. 3, however, the members KK'meplacingthe members K of Fig. 1,

are formed with portions K forming track.

rails for the wheels U, and the parts are so proportioned that when the apparatus of Fig. 3 is adjusted to bring the top of the table A flush with the floor level-E, the rails K will project above the floor level so that they may register with track rails mounted on the floor and will extend high enough above the floor level to lift the car off'the beam J. When in the mold receiving posideparting from the spirit of my invention, and that under some conditions certain features of my invention may be used without acorresponding use of other features.

Having nowdescribed my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A device for the purpose described comprising in combination, a main supporting' member, adjustable devices mounted on said member for engaging a mold lowered onto said devices, a platform mounted on said member and apertured to permit the passage therethroughof said devices and means for adjusting said platform vertically relative to said member.

2. A device for the purpose described comprising in combination, a main supportring member, an element pivoted thereon,

prising in combination, a base, a main supporting member, a beam pivotally connected adjacent its center'to said member, a pair of bars supported by said member one at each-side of said beam, means for adjusting said bars'to cause the latter to bear against the under side of a mold resting on said beam, a table mounted on said member and formed with apertures receiving said beam and bars, and means for adjusting said table from one position ingwhich said beam projects above said table and said beam and bars are free'to adjust themselves to accommodate a mold supported thereby into a second position in which said table is substantially flush with the top-s .of said bars and beam.

4.. A device for the purpose described comprising in combination, a main supporting member, adjustable devices mounted on said member for engaging a mold lowered onto 'said device, a platform mounted on said member and apertured to permit the passage therethrough of said devices, means for imparting vertical movements to said member,

and means actuated by a predetermined vertical movement of said member 'for raising said platform-relative to said member.

A device forthepurpose specifiedcomprising in combination, 'a base,-;'a main supporting member vertically movable onsaid base, 1 devices adjustably mounted on said member for engaging a moldlow'ered onto said device, a platform mounted on said member and formed with apertures through which said devices may project, means for moving said member vertically relative to said base, and meansactuated by the rela V tive movements of said member and base for adjusting saidplatform from one position in which said devices may project above said table, and may be adjusted to accommodate a mold lowered onto them, into a second 7 position in which the tops of said devices are substantially flush with the top of said plat- 'f0rm w V. 6. A device for the purpose specified com,-

prising in combination,'a base, a main supporting member mounted on and vertically movable with respect tojsaid base," adj ustable devices mounted on said member and adapted to engage and support a mold lowered onto said devices, a platform mounted on said support andformed with apertures through which'said devices mayproject', levers mounted on said "member and connections between said-base and levers whereby the latter are caused. to engage said 7. platform and liftit relative to said member on a predetermined vertical movement of the latter. I

7. 'A device-for the purpose specified comprising in combination, a base, a crosshead l Copies arms patent niaybexobtaixied for vertically movable thereon, a beam pivotally connected adjacent its center to said cross-V head, a pair of-bars one at eachside of said beam and means for adjusting said bars to cause the latter to bear against the under side'of a mold restingon said beam,fa' table mounted on said crosshead and formed with apertures receiving said beam and bars, and means for adjusti'ng'jsaid table, on a predetermined" vertical movement of said cross head," from one position in which said beam 1 projects above said table and said beam and bars may be adjusted to accommodate a mold I Witnesses:

"supported thereby into a second position in which said table is substantially flush with the tops of said bars and beam, said means five cents' each; by addressing Washington, D. 0,? 7

comprising levers pivoted on said crosshead' and --.c0nnect1ons between said levers and said base. I v V adjustably'mounted on said member atthe. sides of saidbeam, means-for adjusting: said platform mounted on said member and formed with apertures receiving sa1d beam projects above said platform,.andisaid beam and. bars may be adjusted to accommodatea -mold lowered thereon, into a second position in'which said beam andb'ars are engaged landsupportedbysaid platform.

bars to cause t-he latter to bear againstthe under side of a mold resting on sa d beam,a

and, bars, andmeans for adj usting said "plat form-from oneposition in which said beaml 9. In a roll-over moldingmachine, the

combination of aibase, a mold receiving-device mounted thereon and comprising a main mold supporting member vertically movable relative to said 'base,:means for'moving'saidj 7 member vertically relative to saidbase, and: an adjustable stop limiting the vertical: Vmovement offsaid memberin its downward- *direction comprising-cooperating piston and I cylinder elements eXtending between said member and base, andmeansforllocking a. definite amount of liquid in-said cylinder element.

10. In a, roll-over moldingmachine, the "combination with'a base, of a mold receiving device mounted thereonv and .comprisinga main mold supporting member, said member andbase'having cooperating piston and-cyl-V inder parts; means regulating the admission to and exhaust from said cylinder part of a pressurefluid for raising and lowering said 7 A 95 ton and cylinder parts interposedbetween 7 said baseand said member and means for' v looking a predetermined amount of 7 liquid [in the last mentioned cylindereleriient to member, a second pair of cooperating pis thereby fiX'the limit to the downward movement of said member. I v V ILFRED LEWis;

ARNOLD KATZ, f I V F. STEWART. I

the Commissioner "of J Eatent's," M 

